| 基于小波变换的高斯函数极值点及拐点的判别 |
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| 引用本文： | 杜建卫. 基于小波变换的高斯函数极值点及拐点的判别[J]. 数学的实践与认识, 2004, 34(7): 122-125 |
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| 作者姓名： | 杜建卫 |
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| 作者单位： | 北京石油化工学院数理部,北京,102617 |
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| 摘 要： | 利用小波变换能够表征信号特征的特性 ,选取适当小波函数 ,对 Gauss函数作小波变换 ,根据小波变换零值点和极值点来判别 Gauss函数极值点和拐点 ,根据小波变换的变化情况来判别 Gauss函数的重叠情况 .结果表明是有效的 .
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| 关 键 词： | 小波变换 小波函数 Gauss函数 极值点 拐点 |
| 修稿时间： | 2002-03-05 |
The Distinguishing about the Extremum Drop and the Inflexion of Gauss Function Based on the Wavelet Transformation |
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| DU Jian-wei. The Distinguishing about the Extremum Drop and the Inflexion of Gauss Function Based on the Wavelet Transformation[J]. Mathematics in Practice and Theory, 2004, 34(7): 122-125 |
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| Authors: | DU Jian-wei |
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| Abstract: | The proper wavelet function is selected according to the characteristic of the Wavelet Transformation about tokening diagnostic of signal. The extremum drop and the inflexion of Gauss function are distinguished based on the wavelet transformation of Gauss function, and the joining of Gauss function is also distinguished according to the change of wavelet transformation. The result of experimentation prove to be effective. |
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| Keywords: | the wavelet transformation the wavelet function Gauss function the extremum drop the inflexion |
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